MiniTT1-Canon

With its low profile design, you can use the MiniTT1 Transmitter on
camera to trigger remote E-TTL speedlites or studio flashes attached to
FlexTT5 Transceivers.

Place TTL or manual flashes anywhere to illuminate the scene: Around
corners, out-of-sight and in bright sunlight. The MiniTT1 is compatible
with any PocketWizard radio for triggering manual flash or remote
cameras.